1025646143165 has 64 divisors (see below), whose sum is σ = 1485250560000. Its totient is φ = 665065416960.

The previous prime is 1025646143161. The next prime is 1025646143177. The reversal of 1025646143165 is 5613416465201.

It is not a de Polignac number, because 1025646143165 - 2² = 1025646143161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025646143161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16197236 + ... + 16260434.

It is an arithmetic number, because the mean of its divisors is an integer number (23207040000).

Almost surely, 2^{1025646143165} is an apocalyptic number.

It is an amenable number.

1025646143165 is a deficient number, since it is larger than the sum of its proper divisors (459604416835).

1025646143165 is a wasteful number, since it uses less digits than its factorization.

1025646143165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63570.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1025646143165 in words is "one trillion, twenty-five billion, six hundred forty-six million, one hundred forty-three thousand, one hundred sixty-five".